Ok, replaced the heater element and press. switch on a 2002 Emerald spa. Everthing is fine, it heats nice and circulates and pumps like new. However, the darn thing will not turn off, even after the heater turns off. The low pump keeps running.
Does the press. switch (new) needs to be fine tuned?

pressure switch only controls the heater.

Check for a stuck contactor (relay) for the pump.